import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.layout.GridPane;
import javafx.stage.Stage;

public class HelloJavaFXWorld extends Application {

	@Override
	public void start(Stage primaryStage) {
		System.out.println("start() called");
		primaryStage.setTitle("Hallo Welt!");
        Button butt = new Button();
        butt.setText("Klick mich");
        final Label label = new Label("");
        label.setAlignment(Pos.CENTER);
        label.setStyle("-fx-border-width:1px; -fx-border-color: black;");
        label.setMinSize(87, 20);
        butt.setOnAction(new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent event) {
                label.setText("Hallo Welt!");
            }
        });
        
        GridPane grid = new GridPane();
        grid.setAlignment(Pos.CENTER);
        grid.setHgap(5);
        grid.setVgap(5);
        grid.add(label, 0, 0);
        grid.add(butt, 0, 1);
        grid.setGridLinesVisible(false);

        Scene scene = new Scene(grid, 250, 150);
        primaryStage.setScene(scene);
        scene.getStylesheets().add
        (HelloJavaFXWorld.class.getResource("styles/HelloJavaFXWorld.css").toExternalForm());
        primaryStage.show();
	}

	public static void main(String[] args) {
		System.out.println("main() called");
		launch(args);
	}
}